Tutorials Index

The first two are `passive` elements and op-amp is an `active` element. Also: the first two are...

Here the 220V AC lamp touch dimmer circuit. By only touching this touch dimmer you are able to...

The circuit works like this: Normally the LED is powered dimly through R1 and R3. SW1 is the...

This is the built servo amplifier and circuit diagram. This is a simple and ordinary op-amp...

An oscillator is a circuit that can generate a frequency source such as a sine wave, square wave...

The first circuit, shown below, tests saturated turn-on time, while the second circuit tests...

The amplifier can be used in a number of projects to buffer and amplify outputs from devices such...

Most of the devices used in amplifier output stages are intrinsically seriously non-linear; the...

The solid-state, unity-gain power buffer is easy to imagine, as many already exist. But what...